You could purchase a Crane Cams Rocker Arm Guideplate Conversion kit that would allow you to use adjustable roller rockers without machine work or removing the head. Here is a link: https://www.summitra...AyABEgI1nvD_BwE

Cheers Rocklord engine is already apart, does that kit just allow you to bolt on roller rockers? I'm sick of bending push rods and not something I want to happen on a engine that I've spent a few dollars on